0
@@ -40,12 +40,13 @@
0
     
0
     def self.deregister(pid, event=nil)
0
       if watching_pid? pid
0
+        running = ::Process.kill(0, pid.to_i) rescue false
0
         if event.nil?
0
           @@actions.delete(pid)
0
-          @@handler.register_process(pid, []) if system("kill -0 #{pid} &> /dev/null")
0
+          @@handler.register_process(pid, []) if running
0
         else
0
           @@actions[pid].delete(event)
0
-          @@handler.register_process(pid, @@actions[pid].keys) if system("kill -0 #{pid} &> /dev/null")
0
+          @@handler.register_process(pid, @@actions[pid].keys) if running
0
         end
0
       end
0
     end

0
@@ -8,7 +8,7 @@
0
       
0
       # Return true if this process is running, false otherwise
0
       def exists?
0
-        system("kill -0 #{@pid} &> /dev/null")
0
+        !!::Process.kill(0, @pid) rescue false
0
       end
0
       
0
       # Memory usage in kilobytes (resident set size)

0
@@ -115,7 +115,7 @@
0
   # alive?
0
   
0
   def test_alive_should_call_system_process_exists
0
-    File.expects(:read).with('blah.pid').).returns('1234')
0
+    File.expects(:read).with('blah.pid').times(2).returns('1234')
0
     System::Process.any_instance.expects(:exists?).returns(false)
0
     assert !@p.alive?
0
   end